hans/racket-sound-lib
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using semaphores...

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This commit is contained in:
Hans Dijkema
2026-04-14 18:11:34 +02:00
parent d33bdb3482
commit 373da4aa18
1 changed files with 36 additions and 6 deletions
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42
ao-play-async/ao_playasync.c
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@@ -56,7 +56,6 @@ typedef int(*ao_play_func_t)(void *, char *, uint32_t);
typedef struct { typedef struct {
Queue_t *play_queue; Queue_t *play_queue;
Queue_t *last_frame; Queue_t *last_frame;
sem_t queue_sem;
int paused; int paused;
@@ -71,6 +70,7 @@ typedef struct {
pthread_mutex_t mutex; pthread_mutex_t mutex;
pthread_mutex_t pause_mutex; pthread_mutex_t pause_mutex;
pthread_t thread; pthread_t thread;
sem_t *queue_sem;
#endif #endif
double at_second; double at_second;
double music_duration; double music_duration;
@@ -89,7 +89,11 @@ static Queue_t *front(AO_Handle *h)
static Queue_t *get(AO_Handle *h) static Queue_t *get(AO_Handle *h)
{ {
sem_wait(&h->queue_sem); #ifdef USE_PTHREADS
sem_wait(h->queue_sem);
#endif
#ifdef USE_WINDOWS_THREADS
#endif
MUTEX_LOCK(h->mutex); MUTEX_LOCK(h->mutex);
assert(h->play_queue != NULL); assert(h->play_queue != NULL);
Queue_t *q = h->play_queue; Queue_t *q = h->play_queue;
@@ -119,8 +123,12 @@ static void add(AO_Handle *h, Queue_t *elem)
h->last_frame = elem; h->last_frame = elem;
} }
h->buf_size += elem->buflen; h->buf_size += elem->buflen;
#ifdef USE_PTHREADS
sem_post(h->queue_sem);
#endif
#ifdef USE_WINDOWS_THREADS
#endif
MUTEX_UNLOCK(h->mutex); MUTEX_UNLOCK(h->mutex);
sem_post(&h->queue_sem);
} }
static Queue_t *new_elem(int command, double at_second, double music_duration, int buf_len, void *buf) static Queue_t *new_elem(int command, double at_second, double music_duration, int buf_len, void *buf)
@@ -154,9 +162,30 @@ static void del_elem(Queue_t *q)
static void clear(AO_Handle *h) static void clear(AO_Handle *h)
{ {
/*
MUTEX_LOCK(h->mutex);
while (h->play_queue != NULL) { while (h->play_queue != NULL) {
Queue_t *q = get(h); Queue_t *q = h->play_queue;
del_elem(q); h->play_queue = h->play_queue->next;
del_elem(q);
if (h->play_queue == NULL) {
h->last_frame = NULL;
} else {
h->play_queue->prev = NULL;
}
}
#ifdef USE_PTHREADS
sem_destroy(h->queue_sem);
sem_init(h->queue_sem, 0, 0);
#endif
#ifdef USE_WINDOWS_THREADS
#endif
MUTEX_UNLOCK(h->mutex);
*/
while (h->play_queue != NULL) {
Queue_t *q = get(h);
del_elem(q);
} }
} }
@@ -225,7 +254,8 @@ void *ao_create_async(void *ao_device_yeah, void *ao_play_f)
pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER; pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
handle->mutex = m; handle->mutex = m;
pthread_create(&handle->thread, NULL, run, handle); pthread_create(&handle->thread, NULL, run, handle);
sem_init(&handle->queue_sem, 0, 0); handle->queue_sem = (sem_t *) malloc(sizeof(sem_t));
sem_init(handle->queue_sem, 0, 0);
#endif #endif
#ifdef USE_WINDOWS_THREADS #ifdef USE_WINDOWS_THREADS